Sdn Security: A Survey

TLDR

Software‑Defined Networking offers network visibility and programmability, attracting widespread interest, but raises questions about whether its benefits favor operators or intruders, prompting a need to prioritize security. The study surveys all existing research on SDN security to date. The survey categorizes prior work and proposes conclusions and future research directions.

Abstract

The pull of Software-Defined Networking (SDN) is magnetic. There are few in the networking community who have escaped its impact. As the benefits of network visibility and network device programmability are discussed, the question could be asked as to who exactly will benefit? Will it be the network operator or will it, in fact, be the network intruder? As SDN devices and systems hit the market, security in SDN must be raised on the agenda. This paper presents a comprehensive survey of the research relating to security in software-defined networking that has been carried out to date. Both the security enhancements to be derived from using the SDN framework and the security challenges introduced by the framework are discussed. By categorizing the existing work, a set of conclusions and proposals for future research directions are presented.